Regarding α-amino acids, correct statements areA) They are the building blocks of proteinsB) Solubility of amino acid at its isoelectric point is minimumC) Separation of amino acids is easy at their isoelectric pointD) The basic group of amino acids in aqueous solution is -NH2 group

Regarding α-amino acids, correct statements areA) They are the building blocks of proteinsB) Solubility of amino acid at its isoelectric point is minimumC) Separation of amino acids is easy at their isoelectric pointD) The basic group of amino acids in aqueous solution is -COO- group